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-rw-r--r--include/linux/mutex.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 601479772b98..05c590352dd7 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -125,15 +125,20 @@ static inline int fastcall mutex_is_locked(struct mutex *lock)
extern void mutex_lock_nested(struct mutex *lock, unsigned int subclass);
extern int __must_check mutex_lock_interruptible_nested(struct mutex *lock,
unsigned int subclass);
+extern int __must_check mutex_lock_killable_nested(struct mutex *lock,
+ unsigned int subclass);
#define mutex_lock(lock) mutex_lock_nested(lock, 0)
#define mutex_lock_interruptible(lock) mutex_lock_interruptible_nested(lock, 0)
+#define mutex_lock_killable(lock) mutex_lock_killable_nested(lock, 0)
#else
extern void fastcall mutex_lock(struct mutex *lock);
extern int __must_check fastcall mutex_lock_interruptible(struct mutex *lock);
+extern int __must_check fastcall mutex_lock_killable(struct mutex *lock);
# define mutex_lock_nested(lock, subclass) mutex_lock(lock)
# define mutex_lock_interruptible_nested(lock, subclass) mutex_lock_interruptible(lock)
+# define mutex_lock_killable_nested(lock, subclass) mutex_lock_killable(lock)
#endif
/*